“One should become the master of one's mind rather than let one's mind master him.”
“One is always a good master when one isn’t the master”
“Smartass Disciple: If there were two masters, which one should I listen to?Master of Stupidity: Use the ears to the one who looks so stupid, eyes to else.”
“If one makes himself master of one vital book, he shall never become a commonplace man.”
“What a tremendous power one needs to become his own master!”
“We are all apprentices in a craft where no one ever becomes a master.”